code: def setUp(self):
      super(TestNlvrWorld, self).setUp()
      test_filename = (
          self.FIXTURES_ROOT
          / "data"
          / "nlvr"
          / "sample_ungrouped_data.jsonl"
      )
      data = [
          json.loads(line)["structured_rep"]
          for line in open(test_filename).readlines()
      ]
      self.worlds = [NlvrWorld(rep) for rep in data]
      # y_loc increases as we go down from top to bottom, and x_loc from left to right. That is,
      # the origin is at the top-left corner.
      custom_rep = [
          [
              {
                  "y_loc": 79,
                  "size": 20,
                  "type": "triangle",
                  "x_loc": 27,
                  "color": "Yellow",
              },
              {
                  "y_loc": 55,
                  "size": 10,
                  "type": "circle",
                  "x_loc": 47,
                  "color": "Black",
              },
          ],
          [
              {
                  "y_loc": 44,
                  "size": 30,
                  "type": "square",
                  "x_loc": 10,
                  "color": "#0099ff",
              },
              {
                  "y_loc": 74,
                  "size": 30,
                  "type": "square",
                  "x_loc": 40,
                  "color": "Yellow",
              },
          ],
          [
              {
                  "y_loc": 60,
                  "size": 10,
                  "type": "triangle",
                  "x_loc": 12,
                  "color": "#0099ff",
              }
          ],
      ]
      self.custom_world = NlvrWorld(custom_rep)
  
imports: from __future__ import with_statement
  from __future__ import division
  from __future__ import absolute_import
  import json
  from allennlp.common.testing import AllenNlpTestCase
  from allennlp.semparse.worlds.world import ExecutionError
  from allennlp.semparse.worlds.nlvr_world import NlvrWorld
  from io import open
label_desc: Use image node_id 1 for calling the TestNlvrWorld obj's underlying member method code with example usage: obj.setUp() without return types